Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
han thong » han thuong, hang thong, nhan thong
cong sang » cong san, cong lang, cong bang
cong vang » cong lang, cong quang, cong ngang
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - canh trinh han thong ((cong sang) or (cong vang)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh han thong ((cong sang) OR (cong vang)) than cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh han thong ((cong sang) or (cong vang)) than cao*.